Kalish, Donald (June 1964). "John M. Anderson and Henry W. JohnstoneJr., Natural deduction. The logical basis of axiom systems. Wadsworth Publishing Company, Inc., Belmont, California, 1962, xii + 418 pp". The Journal of Symbolic Logic. 29 (2): 93–94. doi:10.2307/2270418. ISSN0022-4812. JSTOR2270418.
Welch, Cyril (June 1968). "The Realm of Art. By John M. Anderson, The Pennsylvania State University Press, University Park and London. 1967. Pp. xiv & 190. $8.75 or 70s". Dialogue: Canadian Philosophical Review. 7 (1): 122–125. doi:10.1017/S0012217300044486. ISSN1759-0949.
jstor.org
Kalish, Donald (June 1964). "John M. Anderson and Henry W. JohnstoneJr., Natural deduction. The logical basis of axiom systems. Wadsworth Publishing Company, Inc., Belmont, California, 1962, xii + 418 pp". The Journal of Symbolic Logic. 29 (2): 93–94. doi:10.2307/2270418. ISSN0022-4812. JSTOR2270418.
"obituaries". www.psu.edu. Retrieved 18 January 2019.
research.psu.edu
"Evan Pugh Professors". Office of the Vice President for Research at Penn State, Neil A. Sharkey. 30 August 2016. Retrieved 18 January 2019.
worldcat.org
search.worldcat.org
Kalish, Donald (June 1964). "John M. Anderson and Henry W. JohnstoneJr., Natural deduction. The logical basis of axiom systems. Wadsworth Publishing Company, Inc., Belmont, California, 1962, xii + 418 pp". The Journal of Symbolic Logic. 29 (2): 93–94. doi:10.2307/2270418. ISSN0022-4812. JSTOR2270418.
Welch, Cyril (June 1968). "The Realm of Art. By John M. Anderson, The Pennsylvania State University Press, University Park and London. 1967. Pp. xiv & 190. $8.75 or 70s". Dialogue: Canadian Philosophical Review. 7 (1): 122–125. doi:10.1017/S0012217300044486. ISSN1759-0949.